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Catalytic cracking unit is refinery process unit in which petroleum derivatives are continuously charged and hydrocarbon molecules in the presence of a catalyst are fractured into smaller molecules, or react with a contact material suspended in a fluidized bed to improve feedstock quality for additional processing and the catalyst or contact material is continuously regenerated by burning off coke and other deposits.
Census Block Group is a defined by the Census Bureau that usually has in the range of 600-3000 people living in it. The US is divided into more than 200,000 block groups
Climate Change is any significant change in measures of climate (such as temperature, precipitation, or wind) lasting for an extended period (decades or longer). Climate change may result from:
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Delayed Coking Unit is a refinery process unit in which high molecular weight petroleum derivatives are thermally cracked and petroleum coke is produced in a series of closed, batch system reactors. A delayed coking unit consists of the coke drums and ancillary equipment associated with a single fractionator.consists of the coke drums and ancillary equipment associated with a single fractionator.
Demographic Index is an average of these two indicators: Percent Low-Income: The percent of a census blocks group's population in households where the household income is less than or equal to twice the federal "poverty level" and Percent People of Color: The percent of individuals in a census block group who list their racial status as a race other than white alone and/or list their ethnicity as Hispanic or Latino. That is, all people other than non-Hispanic white-alone individuals. The word "alone" in this case indicates that the person is of a single race, not multiracial. The formula is as follows: Demographic Index = (% people of color + % low-income)
Direct emitters are facilities that combust fuels or otherwise put GHGs into the atmosphere directly from their facility. An example of this is a power plant that burns coal or natural gas and emits carbon dioxide directly into the atmosphere.
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Nitrous Oxide (N2O) is a powerful greenhouse gas. Major sources of nitrous oxide include soil cultivation practices, especially the use of commercial and organic fertilizers, fossil fuel combustion, nitric acid production, and biomass burning. The global warming potential of nitrous oxide used by the Greenhouse Gas Reporting Program is 298.
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Percentile is a way to see how local residents compare to everyone else in the United States. Instead of just showing numbers out of context “The national percentile tells you what percent of the US population has an equal or lower value.”
Perfluorocarbons (PFCs) are a group of man-made chemicals composed of carbon and fluorine only. PFCs are primarily emitted from industrial processes. In some cases, they are inputs into these processes; in others, they are by-products. PFCs do not harm the stratospheric ozone layer, but saturated PFCs (PFCs with only single bonds) are powerful greenhouse gases with very long atmospheric lifetimes. Some important PFCs include: Perfluoroethane and Perfluoromethane .
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